rumblefish360
Well-Known Member
This trick of cooking the engine was very helpful in an old Chevy I had. The temp would be border line around 90*'s outside.The heater can be a useful tool if you get sudden unexpected rise in engine temperatures....turn on the heater to full hot, and roll down the windows. By-passing the heater will take away that feature.
But, to temporarily bypass the heater should be fine. Usually done when the heater core is leaking. If you're worried about being cold inside the car during the colder months, the exhaust should provide some warmth from underneath....or just wear warmer clothing.
I seldom use the heater in my GTX, plenty of heat from the exhaust to warm it up.
Also, on many cars, there is a mechanic coolent flow diverter /shut off valve in line on one of the coolent hoses. When the heat is off, the valve shuts stopping coolent flow to the heater core.
It may not have been equipped on your car or may have been removed.
